A fluid detergent composition comprising: a) from 1% to 70% by weight of a surfactant selected from the group: anionic, nonionic surfactants and mixtures thereof; and b) from 0.01 wt% to 10 wt% of a pH tuneable amido-gellant as an external structuring system having a formula selected from the group consisting of: wherein R 1 and R 2 are aminofunctional end-groups, wherein R 1 is R 3 or R 2 is R 4 or wherein each AA is independently selected from the group consisting of: R", H, -CH 3, and R 3 and R 4 independently have the formula: (L') o -(L") q -R, wherein: (o + q) is from 1 to 10; L' and L" are linking groups, independently selected from the linking groups consisting of: *the arrow indicates up to 4 substitutions in the positions indicated, and X- an anion; and R, R' and R" are independently selected either from the pH-sensitive-groups consisting of: or from the group of pH-sensitive molecules consisting of: *then arrow indicates up to 4 substitutions in the positions indicated, n and m are integers from 1 to 20 or from the non-pH-sensitive groups consisting of: such that at least one of R, R' and R" comprises a pH-sensitive group; L 1 is a backbone moiety having molecular weight from 14 to 500 g/mol; and at least one of L 1, R 1 or R 2 comprises a pH-sensitive group. wherein R 5 is an aminofunctional moiety; L 2 is a backbone moiety having molecular weight from 14 to 500 g/mol; wherein R 5 has the formula: wherein: AA is independently selected from the same group of AA as for structure; (e+f+g) is from 0 to 20, and at least one of AA, R comprises a pH sensitive group; and mixtures thereof; wherein the pH tuneable amido-gellant has a pKa of from 1 to 30. a) from 1% to 70% by weight of a surfactant selected from the group: anionic, nonionic surfactants and mixtures thereof; and b) from 0.01 wt% to 10 wt% of a pH tuneable amido-gellant as an external structuring system having a formula selected from the group consisting of: wherein R 1 and R 2 are aminofunctional end-groups, wherein R 1 is R 3 or R 2 is R 4 or wherein each AA is independently selected from the group consisting of: R", H, -CH 3, and R 3 and R 4 independently have the formula: (L') o -(L") q -R, wherein: (o + q) is from 1 to 10; L' and L" are linking groups, independently selected from the linking groups consisting of: *the arrow indicates up to 4 substitutions in the positions indicated, and X- an anion; and R, R' and R" are independently selected either from the pH-sensitive-groups consisting of: or from the group of pH-sensitive molecules consisting of: *then arrow indicates up to 4 substitutions in the positions indicated, n and m are integers from 1 to 20 or from the non-pH-sensitive groups consisting of: such that at least one of R, R' and R" comprises a pH-sensitive group; L 1 is a backbone moiety having molecular weight from 14 to 500 g/mol; and at least one of L 1, R 1 or R 2 comprises a pH-sensitive group. wherein R 5 is an aminofunctional moiety; L 2 is a backbone moiety having molecular weight from 14 to 500 g/mol; wherein R 5 has the formula: wherein: AA is independently selected from the same group of AA as for structure; (e+f+g) is from 0 to 20, and at least one of AA, R comprises a pH sensitive group; and mixtures thereof; wherein the pH tuneable amido-gellant has a pKa of from 1 to 30.